单词：ammonium iridium sulfate
单词：ammonium iridium sulfate 相关文章
In business, Optus has called for Telstra's proposals on its participation in the national broadband network to be blocked. Optus' chief executive Paul O'Sullivan says Telstra's current plan for the separation of its retail and wholesale arms wholesa
澳洲ABC新闻快递2011年
The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过
侏罗纪搏击俱乐部
US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I
VOA标准英语2015年(八月)
Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d
世界各地新闻集锦
AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have
农业与发展
A radioactive source which went missing four days ago has been found on Saturday evening. An Iridium 192 source, which was used to inspect a Sinopec industrial device in Nanjing by a testing company, had gone missing on Wednesday. Ten people in the s
CCTV9英语新闻2014年05月
We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S
英语时差8，16
First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。
《海底两万里》中英双语有声读物